Technology has been essential for the advancement in cardiology diagnostic and treatment since the first accurate recording of the electrocardiogram and its development as a clinical tool in 1895, also the year of the discovery of X-rays by W.K.Röntgen, followed by ultrasound application for medical diagnosis by Dussik in 1941, and many other technologies. In the XXI century significant advances continue to be witnessed even more frequently and it seems evident that there is a very high potential of improving healthcare quality by combining medical knowledge in the area of cardiology with engineering technologies, especially those derived from communications, electronics and informatics.